getBranches : country not shown

Using the following data on createBranch:

{'meta': {'license': {'name': 'Copyright 2017', 'id': 'copyright'}}, 'drive_up': {'hours': 'Mon: 9:00am - 4:30pm, Tue: 9:00am - 4:30pm, Wed: 9:00am - 4:30pm, Thu: 9:00am - 4:30pm, Fri: 9:00am - 5:00pm'}, 'bank_id': 'suncorp', 'address': {'line_2': '18 Jamison Street', 'line_1': '', 'line_3': '', 'country': 'AU', 'city': 'Sydney', 'state': 'NSW', 'postcode': '2000'}, 'lobby': {'hours': 'Mon: 9:00am - 4:30pm, Tue: 9:00am - 4:30pm, Wed: 9:00am - 4:30pm, Thu: 9:00am - 4:30pm, Fri: 9:00am - 5:00pm'}, 'branch_routing': {'address': '', 'scheme': ''}, 'location': {'latitude': 0, 'longitude': 0}, 'name': 'Staff Banking Sydney', 'id': '4578'}`

Does not show the country (AU) in the output of getBranches:

{
    "id":"4578",
    "name":"Staff Banking Sydney",
    "address":{
      "line_1":"",
      "line_2":"18 Jamison Street",
      "line_3":"",
      "city":"Sydney",
      "state":"NSW",
      "postcode":"2000",
      "country":""
    },
    "location":{
      "latitude":0.0,
      "longitude":0.0
    },
    "lobby":{
      "hours":"Mon: 9:00am - 4:30pm, Tue: 9:00am - 4:30pm, Wed: 9:00am - 4:30pm, Thu: 9:00am - 4:30pm, Fri: 9:00am - 5:00pm"
    },
    "drive_up":{
      "hours":"Mon: 9:00am - 4:30pm, Tue: 9:00am - 4:30pm, Wed: 9:00am - 4:30pm, Thu: 9:00am - 4:30pm, Fri: 9:00am - 5:00pm"
    },
    "meta":{
      "license":{
        "id":"copyright",
        "name":"Copyright 2017"
      }
    },
    "branch_routing":{
      "scheme":"",
      "address":""
    }
  }

Looking at the database, the field mappedbranch.mcounty (typo!) is populated (and mappedbranch.mcountrycode empty)

Trace the getBranches and createBranch mapping for branch address fields, then inspect how mappedbranch.mcounty and mappedbranch.mcountrycode are read. Reproduce the supplied AU branch data and verify that the output country is populated from the correct database field.